200503103 has 4 divisors (see below), whose sum is σ = 200697120. Its totient is φ = 200309088.

The previous prime is 200503099. The next prime is 200503139. The reversal of 200503103 is 301305002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200503103 - 2² = 200503099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200503003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95450 + ... + 97527.

It is an arithmetic number, because the mean of its divisors is an integer number (50174280).

Almost surely, 2^200503103 is an apocalyptic number.

200503103 is a deficient number, since it is larger than the sum of its proper divisors (194017).

200503103 is a wasteful number, since it uses less digits than its factorization.

200503103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194016.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 200503103 is about 14159.9118288215. The cubic root of 200503103 is about 585.2934977450.

Adding to 200503103 its reverse (301305002), we get a palindrome (501808105).

The spelling of 200503103 in words is "two hundred million, five hundred three thousand, one hundred three".